This is only a GUI based list so it excludes notable command line or text editor submit commands based softwares which are also very powerful and user friendly.

JMP -

While critics of SAS Institute often complain on the premium pricing of the basic model (especially AFTER the entry of another SAS language software WPS from http://www.teamwpc.co.uk/products/wps – they should try out JMP from http://jmp.com – it has a 1 month free evaluation, is much less expensive and the GUI makes it very very easy to do basic statistical analysis and testing. The learning curve is surprisingly fast to pick it up (as it should be for well designed interfaces) and it allows for very good quality output graphics as well.

While it offers an alternative to Base SAS and SAS /Access software , I really like the affordability (1 Month Free Evaluation and overall lower cost especially for multiple CPU servers ), speed (on the desktop but not on the IBM OS version ) and the intuitive design as well as extensibility of the Workbench. It may look like an integrated development environment and not a proper GUI, but with all the menu features it does qualify as a GUI in my opinion. Check out at http://www.teamwpc.co.uk/products/wps/modules/sdk and http://www.teamwpc.co.uk/products/wps

I know R Commander is much more widely used, but it has no corporate support version. And it is a self confessed basic stats GUI while Rattle has both a corporate version as well as data mining functionality that is simply delightful to use. See interviews with both R Commander Creator Prof John Fox and Prof Graham of Rattle .

The GUI you show for SPSS is actually the one for Modeler (formerly Clementine). The SPSS interface is excellent and easy to learn. The flowchart style of Clementine, Enterprise Miner/Guide and Red-R are not quite as easy to learn but have the advantage of allowing users to re-use an analysis that is still in graphical form.

I keep waiting for a company to create a GUI that allows you to work with menus and dialog boxes (ala SPSS, R Commander, Deducer) while building a simple flowchart, then letting you switch between the two.

The WPS screen shot you show looks more like a development environment than a GUI that writes code for you. Does WPS have a GUI?

Yes, the quest for a sophisticated software that is easy to use seems to be only done by Apple as of now. WPS Workbench does have some features for automation as well as comparing multiple versions of code. I used the Modeler screenshot deliberately as SPSS has a larger portfolio of products and just the SPSS interface alone is not a true measure of that.